diff --git a/eng/common/dotnet-install.sh b/eng/common/dotnet-install.sh
index fdfeea66e7d4..b09ea669f9c0 100755
--- a/eng/common/dotnet-install.sh
+++ b/eng/common/dotnet-install.sh
@@ -52,7 +52,7 @@ done
 # Use uname to determine what the CPU is, see https://en.wikipedia.org/wiki/Uname#Examples
 cpuname=$(uname -m)
 case $cpuname in
-  aarch64)
+  arm64|aarch64)
     buildarch=arm64
     ;;
   amd64|x86_64)
@@ -61,7 +61,7 @@ case $cpuname in
   armv*l)
     buildarch=arm
     ;;
-  i686)
+  i[3-6]86)
     buildarch=x86
     ;;
   *)